A method for preparing spontaneous hot water gel

Abstract

The invention discloses a method for preparing a spontaneous hot water gel, which belongs to the field of medical beauty technology, and includes the following steps: S1: placing a first molding layer on a molding device, and using a scraping device to scrape a heating material on a first scraping surface of the first molding layer; S2: covering a second molding layer on the heating material; S3: heat-sealing the first molding layer and the second molding layer according to the shape of the molding device; S4: covering the first molding layer and the second molding layer after heat sealing with a sealing layer; S5: determining the four-sided heat-sealing boundary according to the slice size before the hydrogel is cured, scraping and heat-sealing continuously, so that the sealing layer forms a plurality of independent closed units; S6: scraping the hydrogel on the second scraping surface of the first molding layer, and curing after slicing according to the four-sided heat-sealed boundary; S7: cutting into a required shape according to requirements after curing. The invention can combine the heating material with the hydrogel scraping process without generating heat; the spontaneous hot water gel prepared by the invention is an integrated structure.

Description

Technical Field

[0001] The present invention relates to the field of medical aesthetics technology, and in particular to a method for preparing a spontaneous hot water gel. Background Art

[0002] With the development of modern medical and cosmetic medicine, transdermal topical products are becoming more and more popular, especially in the field of medical surgical pain. The main products include various ointment patch products. The common topical patch products on the market are mainly rubber plasters, which have good adhesion properties, but the transdermal permeability of the active ingredients is low and the sensitization rate is high. Although the existing hydrogel patches have a higher transdermal permeability of the active ingredients than rubber plasters and a very low sensitization rate, the hydrogel patches contain a large amount of high molecular weight hydrophilic substances. During the application process, the hydrogel patches absorb the heat of the skin at the application site to reduce the local temperature of the skin and produce a cooling feeling. For the elderly and children with more fragile skin, the cooling stimulation during use will be more intense, resulting in poor comfort; and the hydrogel patches have poor adhesion and are not applied for a long time, so their effects cannot be fully exerted.

[0003] Existing patents such as a self-heating gel eye mask with a publication date of 20160113 and patent number CN201520657609.6 and a spontaneous hot water gel patch with a publication date of 20160824 and patent number CN201620129976.3 both describe the structure of the spontaneous hot water gel, but do not describe the preparation process of the spontaneous hot water gel.

[0004] Therefore, how to provide a preparation method and describe the preparation process of spontaneous thermal water gel so that the prepared hydrogel patch can promote local blood circulation of the skin and is more conducive to the release and penetration of the active ingredients in the hydrogel patch is a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0005] To this end, the present invention provides a method for preparing a spontaneous hydrothermal gel to solve the problem of poor absorption effect caused by the single function of the hydrogel patch in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A method for preparing a spontaneous hot water gel comprises the following steps:

[0008] S1: placing a first molding layer on a molding device, and applying a heat-generating material on a first coating surface of the first molding layer by using a scraping device;

[0009] S2: Covering the second molding layer on the heat-generating material;

[0010] S3: heat-sealing the first molding layer and the second molding layer according to the shape of the molding device;

[0011] S4: Covering the first molded layer and the second molded layer after heat sealing with a sealing layer;

[0012] S5: determining the heat-sealing boundaries on four sides according to the size of the slices before the hydrogel solidifies, and continuously scraping and heat-sealing to form a plurality of independent closed units in the sealing layer;

[0013] S6: applying the hydrogel on the second coating surface of the first forming layer, slicing according to the boundaries of the four heat-sealed edges, and then curing;

[0014] S7: After curing, cut into the required shape as required.

[0015] Furthermore, the first forming layer is a composite / cast airtight film nonwoven fabric or a composite / cast airtight film paper.

[0016] Furthermore, the second forming layer is a breathable film or a composite breathable film non-woven fabric.

[0017] Furthermore, the sealing layer is airtight paper.

[0018] Furthermore, the first coating surface of the composite / cast airtight film nonwoven fabric or composite / cast airtight film paper in step S1 is the film surface, and the second coating surface of the composite / cast airtight film nonwoven fabric or composite / cast airtight film paper is the nonwoven fabric surface or the paper surface.

[0019] Furthermore, the membrane surface of the breathable membrane or the composite breathable membrane non-woven fabric in step S2 is close to the heat-generating material.

[0020] Furthermore, the width of the heat seal in step S5 is 5-30 mm.

[0021] Furthermore, each sealed unit in step S5 includes one or more heating elements and is rolled.

[0022] Furthermore, the method further comprises step S8: after the slices are cured, the sealing layer is separated from the first molding layer and the second molding layer after heat sealing.

[0023] The present invention has the following advantages:

[0024] 1. This invention describes for the first time the process of combining exothermic material and hydrogel;

[0025] 2. The present invention can combine the exothermic material with the hydrogel coating process without generating heat;

[0026] 3. The spontaneous hot water gel prepared by the present invention is an integrated structure;

[0027] 4. The production process of the present invention is simple and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0029] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0030] Figure 1 A method flow chart of a method for preparing a spontaneous hot water gel;

[0031] Figure 2 It is a schematic diagram of the structure of the closed unit before rolling;

[0032] Figure 3 A heating curve diagram of the heating moxibustion patch provided in Example 1 of the present invention;

[0033] Figure 4 A heating curve diagram of the heating moxibustion patch provided in Example 2 of the present invention;

[0034] Figure 5 A schematic diagram of the structure of a self-heating hydrogel eye mask provided in Example 3 of the present invention;

[0035] Figure 6 This is a heating curve diagram of the spontaneous hot water gel eye mask provided in Example 3 of the present invention;

[0036] Figure 7 A schematic structural diagram of a self-generating hot water gel mask provided in Example 4 of the present invention;

[0037] Figure 8 This is a heat generation curve diagram of the spontaneous hot water gel mask provided in Example 4 of the present invention.

[0038] In the figure:

[0039] 100 heating element; 200 heat sealing edge. DETAILED DESCRIPTION

[0040] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In order to solve the related technical problems existing in the prior art, the present application provides a method for preparing a spontaneous hydrothermal gel, aiming to solve the problems such as the poor absorption effect of the existing hydrogel and achieve the effect of promoting the absorption of the hydrogel. Figure 1 As shown, the specific steps include:

[0042] S1: placing a first molding layer on a molding device, and using a scraping device to scrape the heat-generating material on the first scraping surface of the first molding layer. The first molding layer is a composite / cast airtight film nonwoven fabric or a composite / cast airtight film paper, and the first scraping surface of the composite / cast airtight film nonwoven fabric or the composite / cast airtight film paper is a film surface. The film surface in the airtight first molding layer blocks water in the hydrogel from entering the heat-generating material.

[0043] S2: Covering the heat-generating material with a second molded layer, wherein the second molded layer is a breathable film or a composite breathable film non-woven fabric, and the film surface of the breathable film or the composite breathable film non-woven fabric is close to the heat-generating material.

[0044] S3: heat-sealing the first molding layer and the second molding layer according to the shape of the molding device;

[0045] S4: Cover the first molded layer and the second molded layer after heat sealing with a sealing layer, wherein the sealing layer is airtight paper.

[0046] S5: Determine the heat-sealed boundaries 200 on all four sides according to the size of the slices before the hydrogel solidifies, and continuously scrape and heat-seal to form a plurality of independent closed units in the sealing layer, each of which includes one or more heating elements 100 and is rolled up, wherein the width of the heat seal is between 5 mm and 30 mm so that it can be cut after the hydrogel is scraped to ensure that the heating material does not generate heat.

[0047] S6: Scrape the hydrogel on the second scrape-coated surface of the first forming layer, slice it according to the boundaries of the four-side heat seal, and then solidify it. The second scrape-coated surface of the composite / cast airtight film non-woven fabric or composite / cast airtight film paper is a non-woven fabric surface or a paper surface.

[0048] S7: After curing, cut into the required shape as required.

[0049] S8: After the slices are cured, the sealing layer is separated from the heat-sealed first molding layer and the second molding layer.

[0050] Specifically, spontaneous hot water gels with different size requirements and shape requirements are prepared according to needs.

[0051] Example 1

[0052] The forming device is a circle with a diameter of 2.3 cm, and the intervals are 0.5 cm, distributed as follows Figure 2 As shown, the composite film nonwoven fabric is placed in a forming device, the heating ink material is conveyed to the composite film nonwoven fabric by a feeding device, and a transmission mechanism drives a scraping mechanism to scrape and coat it, and then a layer of breathable film (breathable film with a penetration weight of 3000g / (m 2 •24h)), the breathable film and the composite film non-woven fabric are heat-sealed to form a circular cavity, and then covered with a layer of airtight paper, and the four sides are heat-sealed, and then scraped and coated continuously, and finally rolled. The rolled heating element is placed on the equipment for scraping hydrogel, and the composite film non-woven fabric surface is scraped with a thickness of 1.2 mm, sliced, and after waiting for 15 hours, it is cut into a round bean shape by a rolling knife slicing method. From then on, the preparation of the hydrogel heating moxibustion patch is completed. Figure 3 This is the heating curve of the heating moxibustion patch. As can be seen from the figure, it uses a 37℃ constant temperature version, the heating time is 3 minutes, and the highest temperature is 63℃.

[0053] Example 2

[0054] The forming device is a circle with a diameter of 2.3 cm, and the intervals are 0.5 cm, distributed as follows Figure 2 As shown, the composite film nonwoven fabric is placed in a forming device, the heating ink material is conveyed to the composite film nonwoven fabric by a feeding device, and a transmission mechanism drives a scraping mechanism to scrape and coat it, and then a layer of breathable film (breathable film with a penetration weight of 3000g / (m 2 •24h)), the breathable film and the composite film non-woven fabric are heat-sealed to form a circular cavity, and then covered with a layer of airtight paper, and the four sides are heat-sealed, and then scraped and coated continuously, and finally rolled. The rolled heating element is placed on the equipment for scraping hydrogel, and the composite film non-woven fabric surface is scraped with a thickness of 1.8 mm, sliced, and after waiting for 15 hours, it is cut into a round bean shape by a rolling knife slicing method. From then on, the preparation of the hydrogel heating moxibustion patch is completed. Figure 4 This is the heating curve of the heating moxibustion patch. As can be seen from the figure, it uses a 37℃ constant temperature version, the heating time is 5 minutes, and the highest temperature is 56℃.

[0055] Example 3

[0056] The forming device is a circle with a diameter of 2 cm and an irregular shape, distributed as Figure 5As shown, the composite film nonwoven fabric is placed in a forming device, the heating ink material is conveyed to the composite film nonwoven fabric by a feeding device, and a transmission mechanism drives a scraping mechanism to scrape and coat it, and then a layer of breathable film (breathable film with a penetration weight of 2000g / (m 2 •24h), the breathable film and the composite film non-woven fabric are heat-sealed to form a circular cavity, and then covered with a layer of airtight paper, and the four sides are heat-sealed, and then scraped and coated continuously, and finally rolled. The rolled heating element is placed on the equipment for scraping hydrogel, and the composite film non-woven fabric surface is scraped with a thickness of 1.5 mm, sliced, and waited for 15 hours. Figure 5 As shown, it is cut into an eye mask shape by rolling knife slicing, and the spontaneous hot water gel eye mask is prepared. Figure 6 This is the eye mask heating curve. As can be seen from the figure, using a 30°C constant temperature version, the heating time is 3 minutes and the highest temperature is 48°C.

[0057] Example 4

[0058] The forming device is a circle with a diameter of 1.8 cm, distributed as Figure 7 As shown, the composite film nonwoven fabric is placed in a forming device, the heating ink material is conveyed to the composite film nonwoven fabric by a feeding device, and a transmission mechanism drives a scraping mechanism to scrape and coat it, and then a layer of breathable film (the breathable film has a penetration weight of 1800g / (m 2 •24h), the breathable film and the composite film non-woven fabric are heat-sealed to form a circular cavity, and then covered with a layer of airtight paper, and the four sides are heat-sealed, and the coating is continuously scraped and finally rolled. The rolled heating element is placed on the equipment for scraping hydrogel, and the composite film non-woven fabric surface is scraped with a thickness of 1.2 mm, sliced, and waited for 15 hours. Figure 7 As shown, it is cut into a mask shape by rolling knife slicing, and the spontaneous hot water gel mask is prepared. Figure 8 This is the heating curve of the mask. As can be seen from the figure, using a 30°C constant temperature version, the heating time is 1 minute and the highest temperature is 46°C.

[0059] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made on the basis of the present invention. Therefore, these modifications or improvements made on the basis of not departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A method for preparing a spontaneous hot water gel, characterized in that: The following steps are involved: S1: placing a first molding layer on a molding device, and applying a heat-generating material on a first coating surface of the first molding layer by using a scraping device; S2: Covering the second molding layer on the heat-generating material; S3: heat-sealing the first molding layer and the second molding layer according to the shape of the molding device; S4: Covering the first molded layer and the second molded layer after heat sealing with a sealing layer; S5: determining the heat-sealing boundaries on four sides according to the size of the slices before the hydrogel solidifies, and continuously scraping and heat-sealing to form a plurality of independent closed units in the sealing layer; S6: applying the hydrogel on the second coating surface of the first forming layer, slicing according to the boundaries of the four heat-sealed edges, and then curing; S7: After curing, cut into required shapes as required; The method further comprises step S8: after the slices are cured, the sealing layer is separated from the first molding layer and the second molding layer after heat sealing.

2. The method for preparing the spontaneous hot water gel according to claim 1, wherein: The first forming layer is a composite / cast airtight film nonwoven fabric or a composite / cast airtight film paper.

3. The method for preparing the spontaneous hot water gel according to claim 1, characterized in that: The second forming layer is a breathable film or a composite breathable film non-woven fabric.

4. The method for preparing the spontaneous hot water gel according to claim 1, wherein: The sealing layer is airtight paper.

5. The method for preparing the spontaneous hot water gel according to claim 2, characterized in that: The first coating surface of the composite / cast airtight film nonwoven fabric or composite / cast airtight film paper in step S1 is the film surface, and the second coating surface of the composite / cast airtight film nonwoven fabric or composite / cast airtight film paper is the nonwoven surface or the paper surface.

6. The method for preparing the spontaneous hot water gel according to claim 3, characterized in that: The membrane surface of the breathable membrane or the composite breathable membrane non-woven fabric in step S2 is close to the heat-generating material.

7. The method for preparing the spontaneous hot water gel according to claim 1, characterized in that: The width of the heat seal in step S5 is 5-30 mm.

8. The method for preparing the spontaneous hot water gel according to claim 1, characterized in that: Each of the sealed units in step S5 includes one or more heating elements and is rolled.

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